Some of the components, or objects, that make up an HPDPS environment
are shown in Figure 1-2 “Major HPDPS Objects ”. See “What Are Objects and Attributes? ” shortly
for more information on objects.
The figure shows an HPDPS spooler server and a supervisor
server. The servers contain the major objects involved with printing:
jobs, documents, logical printers, physical printers, and queues.
Each of these objects is described below.
What is an HPDPS Physical Printer? |
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Within HPDPS, the printer device is the actual printer hardware
while the term physical printer refers to
the HPDPS software representation of the printer device.
You configure the attributes of the physical printer so that
it reflects the features, functions and capabilities of the printer
device. See “Creating and Configuring
Physical Printers ” in Chapter 5 for information
on physical printer configuration tasks.
What Is an HPDPS Logical Printer? |
|
An HPDPS logical printer represents
an abstract set of job and printer capabilities, such as the types
of document formats supported and the types of media supported.
Your users submit their jobs to logical printers, which then verify
that there are physical printers capable of handling the jobs. Once
verified, the logical printer sends the job to an associated queue.
You can define a default logical printer for your users, and
you can configure other logical printers to restrict the access
of users to printers. You might want to restrict access for reasons
such as security, job management, or printer capabilities. “Creating and Configuring Logical Printers ” in Chapter 6 describes the configuration tasks
you can perform for HPDPS logical printers.
What Is an HPDPS Queue? |
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An HPDPS queue schedules jobs on physical
printers.
One or more HPDPS logical printers can send jobs to a single
HPDPS queue, and a queue can have one or more associated physical
printers. See “Creating and Configuring Queues ” in Chapter 6 for the configuration
tasks related to HPDPS queues.
What Is an HPDPS Spooler? |
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The HPDPS spooler is the server that
controls the logical printer and the queue. The spooler does the
following:
Applies specified defaults to jobs
Validates that jobs can be printed using the printers
on the network
Schedules jobs from queues to physical printers
What Is an HPDPS Supervisor? |
|
The HPDPS supervisor is the server
that manages and controls the physical printer. The supervisor:
Receives jobs from the spooler
Directs jobs to the physical printer
Reports errors to the spooler and the client
There can be several supervisors, each supporting multiple
physical printers, for each spooler in your system.
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